Uses: These furnaces are designed for general use in the shop, laboratory or factory where temperatures from 300°F to 2250° F are required. They are used for heat treating metal, assaying and all types of testing.

Temperature controls: Auto tuning microprocessor-based controller.

Elements: High temperature iron-aluminum alloy wire elements are coiled and mounted on the side wall in porcelain plates.

The C133 Has a bottom element mounted in groves in floor and covered by refractory heart plate.

Model C136 assaying furnace has no bottom element and the side elements are raised ...

"Heat Treating Furnaces" also known as hardening furnacesHeat treat (Hardening) furnaces have higher heat output power than draw furnaces due to the elevated temperatures at which they operate. Heat transfer to the tool steel is accomplished by a very efficient process called direct radiation. Temperature uniformity in these furnaces is best in the red heat range. Normal maximum temperature is 1232°C (2250°F). Optional 1316°C (2400°F.) maximum temperature versions are available.

Uses: These furnaces are designed for general use in the shop, laboratory or factory where temperatures from 300°F to ...

"Draw Furnaces" also known as annealing, tempering or forcedDraw furnaces are used for tempering and other low temperature processes. They normally operate at temperatures below red heat range where heat transfer to the tool steel is accomplished by the process of convection heat transfer. To increase convection efficiency, these furnaces are equipped with a fan in the heating chamber to move air (Forced Convection). This delivers a temperature uniformity of ± 6°C (± 10°F) or better. Maximum temperature is 677°C (1250°F.). Optional 1093°C (2000°F.) maximum temperature versions are ...

Uses: Designed for those who desire a hardening furnace, a quench tank plus a separate furnace for tempering or drawing all within a Minimum floor space. The two chambers allow for immediate tempering or drawing after quench without waiting for the hardening furnace to cool to the lower temperature required.

Controls: Both chambers are equipped with their own electronic control, thermocouples and solid state relays. Auto tuning microprocessor based controls are accurate to ± 1/4 of 1%. Each chamber is equipped with door safety switches that remove power from that chambers heating elements and fan blower.

Uses: These furnaces are designed for heavy duty, larger volume jobs requiring controlled temperatures up to 2100°F continuous or 2250°F intermittent.

Controls: These furnace come standard with a digital programmable main control and a digital high limit safety control. Solid state power switching to the heating elements, and dual door limit safety switches that interrupt power to the elements when the door is opened.

Elements: High temperature alloy wire elements are mounted in porcelain plates on the walls and floor and in grooves in the brick door, this provides all around heating and close ...

Uses: Designed for those who desire a large hardening furnace plus a separate furnace for tempering or drawing, all within a Minimum floor space. The two chambers allow for immediate tempering or drawing after quench without waiting for the hardening furnace to cool to the lower temperature required.

Controls: These furnaces come standard with two sets of individual digital programmable control and a digital high limit safety control. Solid state power switching to the heating elements. Each chamber is equipped with dual door limit safety switches that interrupt power to the elements when the door is opened. Fan ...

Uses: This large capacity furnace can be used for various types of heat treatment processes which require temperatures up to 2100°F continuos temperature or 2250°F intermittent.

Controls: These furnaces come standard with a digital programmable main control and a digital high limit safety control. Solid state power switching to the heating elements, and dual door limit safety switches that interrupt power to the elements when the door is opened. All wiring is complete and ready to be connected to your power source. Input controls allow operator to adjust temperatures of various zones so that uniform ...

Uses: This large capacity furnace can be used for various types of heat treatment processes which require temperatures from 200°F to 1950°F. The 6 bladed axial flow fan mounted in the roof circulates the air within the chamber resulting in close gradients throughout. OPTION: 2250 rating using a 4 zone control.

Controls: Furnace is equipped with Cress Electronic Control. The control, contactor and fan motor are all completely wired ready for simple connection to your power. A limit switch is mounted on the furnace body which automatically turns elements off when the door is opened. Programmable controls and ...

"Draw Furnaces" also known as annealing, tempering or forcedDraw furnaces are used for tempering and other low temperature processes. They normally operate at temperatures below red heat range where heat transfer to the tool steel is accomplished by the process of convection heat transfer. To increase convection efficiency, these furnaces are equipped with a fan in the heating chamber to move air (Forced Convection). This delivers a temperature uniformity of ± 6°C (± 10°F) or better. Maximum temperature is 677°C (1250°F.). Optional 1093°C (2000°F.) maximum temperature versions are ...

Uses: These bottom opening quick quench furnaces, are designed for aluminum heat treatment to a maximum temperature of 1200 ºF. Temperature gradients are ± 5 ºF or less.

Controls: These furnaces come standard with a Model SD, digital LED readout microprocessor programmable control mounted in a separate free standing control cabinet. There is an independent digital high limit safety control and independent contactor and dual door limit safety switches that interrupt power to the elements and fan when the door is opened.

Uses: These bottom opening furnaces, are designed for heat treatment at temperatures up to 2250 ºF.
Temperature gradients are ± 5 ºF or better.

Controls: These furnaces come standard with an easy to use digital programmable 4 zone system and a high limit backup system. Mounted in a separate free standing control cabinet. Dual safety switches that interrupt the power to the heating coils when the unit is raised.

Elements: Special PM elements for long life at low and high temperatures. Elements are heavy gage, mounted in grooves in all sidewalls of the furnace. The design of the heating coils ...

Digital temperature controls fall into two basic types, process controllers and high limit controls (over temperature controls). Process Controls handle the temperature and time requirements of the heat treat processes. These controls come in two types, non-programmable (single set point) and programmable. Non-Programmable controls such as the model 935 are a single set point control, you simply input the desired temperature, along with a length of time to hold this temperature once achieved. The furnace heats to the desired temperature as fast as possible, holds for the amount of time, then ends the process. At the end of the ...